Locomotive truck-wheel and driver box



(N0 Model.)

J. M. WALLIS.- LOGO-MOTIVE TRUCK WHEEL AND DRIVER BOX.

No. 393,045. Patented Nov. 20, 1888.

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FIG-.2

UNITED STATES PATENT @FFICE.

JOHN M. WALLIS, OF NEAR QUEENSTOVN, MARYLAND.

LOCOMOTIVE- TRUCK-WHEEL AND DRIVER BOX.

SPECIFICATION forming part of Letters Patent No. 393,045, dated November 20, 1888.

Application filed September 1, 1888. Serial No. 284,327.

To all whom it may concern:

Beit known that I, JOHN M. W'ALLIS, living near Queenstown, Queen Anne county, State of Maryland, have invented a new and useful Improvement in Locomotive Truck-Wheel and Driver Boxes, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to the construction of the boxes of the truck-wheels and drivers of locomotive-engines, and especially to the adjustment of the cellars in said boxes. As heretofore constructed great trouble has been incurred, owing to the wearing and cutting of the box-casting by the bolts which secure the cellar to said casting, this wear not only necessitating frequent renewals of the box-castings, but also, by permitting the cellar to drop too low beneath the axles, resultingin insufficient lubrication of the axlejournals.

The object of my invention is to overcome these defects, to prevent the harmful wear on the box-casting, and to make the position of the cellar adjustable in said casting, so that the lubricating-filling can be made to press against the axle-journal to a proper degree.

Reference being now had to the drawings, which illustrate my invention as applied to a truck-box, Figure l is a side elevation of the truck-box, cellar, &c., secured togetherand in place in the frame of the truck; Fig. 2, a sec tion through the box and cellar on the liney 3 of Fig. 1; Fig. 3, a top view of the truck-box; Fig. 4, an elevation of the truckbox, and Fig. 5 a perspective view of the cellar.

A indicates the frame of the truck; B, the truck-box casting; O, the brass journal-boarings, and O a Babbitt-metal filling.

D is the cellar; E E, wedge-keys; F and F, devices for securing the keys E in place in the box-casting.

(N0 model.)

B B indicate rectangular tapered perforations formed in box-casting B to admit the wedge-keys E; D D, shoulders on the cellar D, formed to rest upon the keys E, as shown.

b b are oil-gates.

The cellar and box are of the usual construction, and are put together in the usual manner, except that instead of sustaining the cellar upon bolts passing through the box-casting, and. which by their constant movement soon wear out the casting through which they pass, 1 form the rectangular tapered perforations B B through the box-casting, and after the cellar is put in place insert the wedgekeys E E in said perforations and beneath the shoulders D of the cellar. The position of the wedgekeys will regulate the position of the cellar in the box, and by moving them it can be adjusted at will. Any convenient fastening device such as F or Fcan be used to keep the wedgekeys in place. By using this device I have found that the wear on the box-casting, from which so much trouble has heretofore arisen, is entirely avoided, and a considerable saving in renewals is gained, while at the same time the dangers and troubles arising from defective lubrication are greatly lessened.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, i s

In a locomotiveaxle box, the combination of a box-casting, B, having tapered perforations B, acellar, D, having shoulders D, and wedgekeys E E, adapted to pass through the perforations B and beneath the shoulders D of the cellar, all substantially as and for the purpose specified.

JOHN M. \VALLIS.

Witnesses:

LEwIs R. DICK, FRANCIS T. CHAMBERS. 

